package demo1;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: xiaotutu
 * Date: 2023-11-07
 * Time: 11:25
 */
public class Computer {
    public void powerOn() {
        System.out.println("打开笔记本电脑!");
    }

    public void powerOff() {
        System.out.println("关闭笔记本电脑!");
    }

    public void useDevice(USB usb) {
        usb.openDevice();
        if(usb instanceof Mouse) {
            Mouse mouse = (Mouse)usb;
            mouse.click();
        }else if(usb instanceof keyBoard) {
            keyBoard keyBoard = (keyBoard)usb;
            keyBoard.inPut();
        }else {
            earPhone earPhone = (earPhone) usb;
            earPhone.putONearphone();
        }
        usb.closeDevice();
    }


}
